/*
 * WPA Supplicant - Driver event processing
 * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * Alternatively, this software may be distributed under the terms of BSD
 * license.
 *
 * See README and COPYING for more details.
 */

#include "includes.h"

#include "common.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "wpa.h"
#include "eloop.h"
#include "drivers/driver.h"
#include "config.h"
#include "l2_packet/l2_packet.h"
#include "wpa_supplicant_i.h"
#include "pcsc_funcs.h"
#include "preauth.h"
#include "pmksa_cache.h"
#include "wpa_ctrl.h"
#include "eap_peer/eap.h"
#include "ctrl_iface_dbus.h"
#include "ieee802_11_defs.h"
#include "blacklist.h"
#include "wpas_glue.h"
#include "wps_supplicant.h"
#include "wpa_i.h"


static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
{
        struct wpa_ssid *ssid;

        if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
                return 0;

        wpa_printf(MSG_DEBUG, "Select network based on association "
                   "information");
        ssid = wpa_supplicant_get_ssid(wpa_s);
        if (ssid == NULL) {
                wpa_printf(MSG_INFO, "No network configuration found for the "
                           "current AP");
                return -1;
        }

        if (ssid->disabled) {
                wpa_printf(MSG_DEBUG, "Selected network is disabled");
                return -1;
        }

        wpa_printf(MSG_DEBUG, "Network configuration found for the current "
                   "AP");
        if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
                              WPA_KEY_MGMT_WPA_NONE |
                              WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X |
                              WPA_KEY_MGMT_PSK_SHA256 |
                              WPA_KEY_MGMT_IEEE8021X_SHA256 | 
            WPA_KEY_MGMT_CCKM)) {
                u8 wpa_ie[80];
                size_t wpa_ie_len = sizeof(wpa_ie);
                wpa_supplicant_set_suites(wpa_s, NULL, ssid,
                                          wpa_ie, &wpa_ie_len);
        } else {
                wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
        }

        if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
                eapol_sm_invalidate_cached_session(wpa_s->eapol);
        wpa_s->current_ssid = ssid;
        wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
        wpa_supplicant_initiate_eapol(wpa_s);

        return 0;
}


static void wpa_supplicant_stop_countermeasures(void *eloop_ctx,
                                                void *sock_ctx)
{
        struct wpa_supplicant *wpa_s = eloop_ctx;

        if (wpa_s->countermeasures) {
                wpa_s->countermeasures = 0;
                wpa_drv_set_countermeasures(wpa_s, 0);
                wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
                wpa_supplicant_req_scan(wpa_s, 0, 0);
        }
}


void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
{
        wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
        os_memset(wpa_s->bssid, 0, ETH_ALEN);
        os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
        eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
        eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
        if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
                eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
        wpa_s->ap_ies_from_associnfo = 0;
}


static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
{
        struct wpa_ie_data ie;
        int pmksa_set = -1;
        size_t i;

        if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
            ie.pmkid == NULL)
                return;

        for (i = 0; i < ie.num_pmkid; i++) {
                pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
                                                    ie.pmkid + i * PMKID_LEN,
                                                    NULL, NULL, 0);
                if (pmksa_set == 0) {
                        eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
                        break;
                }
        }

        wpa_printf(MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from PMKSA "
                   "cache", pmksa_set == 0 ? "" : "not ");
}


static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
                                                 union wpa_event_data *data)
{
        if (data == NULL) {
                wpa_printf(MSG_DEBUG, "RSN: No data in PMKID candidate event");
                return;
        }
        wpa_printf(MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
                   " index=%d preauth=%d",
                   MAC2STR(data->pmkid_candidate.bssid),
                   data->pmkid_candidate.index,
                   data->pmkid_candidate.preauth);

        pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
                            data->pmkid_candidate.index,
                            data->pmkid_candidate.preauth);
}


static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
{
        if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
            wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
                return 0;

#ifdef IEEE8021X_EAPOL
        if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
            wpa_s->current_ssid &&
            !(wpa_s->current_ssid->eapol_flags &
              (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
               EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
                /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
                 * plaintext or static WEP keys). */
                return 0;
        }
#endif /* IEEE8021X_EAPOL */

        return 1;
}


/**
 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
 * @wpa_s: pointer to wpa_supplicant data
 * @ssid: Configuration data for the network
 * Returns: 0 on success, -1 on failure
 *
 * This function is called when starting authentication with a network that is
 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
 */
int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
                              struct wpa_ssid *ssid)
{
#ifdef IEEE8021X_EAPOL
        int aka = 0, sim = 0, type;

        if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
                return 0;

        if (ssid->eap.eap_methods == NULL) {
                sim = 1;
                aka = 1;
        } else {
                struct eap_method_type *eap = ssid->eap.eap_methods;
                while (eap->vendor != EAP_VENDOR_IETF ||
                       eap->method != EAP_TYPE_NONE) {
                        if (eap->vendor == EAP_VENDOR_IETF) {
                                if (eap->method == EAP_TYPE_SIM)
                                        sim = 1;
                                else if (eap->method == EAP_TYPE_AKA)
                                        aka = 1;
                        }
                        eap++;
                }
        }

        if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
                sim = 0;
        if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
                aka = 0;

        if (!sim && !aka) {
                wpa_printf(MSG_DEBUG, "Selected network is configured to use "
                           "SIM, but neither EAP-SIM nor EAP-AKA are enabled");
                return 0;
        }

        wpa_printf(MSG_DEBUG, "Selected network is configured to use SIM "
                   "(sim=%d aka=%d) - initialize PCSC", sim, aka);
        if (sim && aka)
                type = SCARD_TRY_BOTH;
        else if (aka)
                type = SCARD_USIM_ONLY;
        else
                type = SCARD_GSM_SIM_ONLY;

        wpa_s->scard = scard_init(type);
        if (wpa_s->scard == NULL) {
                wpa_printf(MSG_WARNING, "Failed to initialize SIM "
                           "(pcsc-lite)");
                return -1;
        }
        wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
        eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
#endif /* IEEE8021X_EAPOL */

        return 0;
}


#ifndef CONFIG_NO_SCAN_PROCESSING
static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
                                        struct wpa_ssid *ssid)
{
        int i, privacy = 0;

        if (ssid->mixed_cell)
                return 1;

#ifdef CONFIG_WPS
        if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
                return 1;
#endif /* CONFIG_WPS */

        for (i = 0; i < NUM_WEP_KEYS; i++) {
                if (ssid->wep_key_len[i]) {
                        privacy = 1;
                        break;
                }
        }
#ifdef IEEE8021X_EAPOL
        if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
            ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
                                 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
                privacy = 1;
#endif /* IEEE8021X_EAPOL */

        if (bss->caps & IEEE80211_CAP_PRIVACY)
                return privacy;
        return !privacy;
}


static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
                                         struct wpa_ssid *ssid,
                                         struct wpa_scan_res *bss)
{
        struct wpa_ie_data ie;
        int proto_match = 0;
        const u8 *rsn_ie, *wpa_ie;
        int ret;

        ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
        if (ret >= 0)
                return ret;

        rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
        while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
                proto_match++;

                if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
                        wpa_printf(MSG_DEBUG, "   skip RSN IE - parse failed");
                        break;
                }
                if (!(ie.proto & ssid->proto)) {
                        wpa_printf(MSG_DEBUG, "   skip RSN IE - proto "
                                   "mismatch");
                        break;
                }

                if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
                        wpa_printf(MSG_DEBUG, "   skip RSN IE - PTK cipher "
                                   "mismatch");
                        break;
                }

                if (!(ie.group_cipher & ssid->group_cipher)) {
                        wpa_printf(MSG_DEBUG, "   skip RSN IE - GTK cipher "
                                   "mismatch");
                        break;
                }

                if (!(ie.key_mgmt & ssid->key_mgmt)) {
                        wpa_printf(MSG_DEBUG, "   skip RSN IE - key mgmt "
                                   "mismatch");
                        break;
                }

#ifdef CONFIG_IEEE80211W
                if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
                    ssid->ieee80211w == IEEE80211W_REQUIRED) {
                        wpa_printf(MSG_DEBUG, "   skip RSN IE - no mgmt frame "
                                   "protection");
                        break;
                }
#endif /* CONFIG_IEEE80211W */

                wpa_printf(MSG_DEBUG, "   selected based on RSN IE");
                return 1;
        }

        wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
        while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
                proto_match++;

                if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
                        wpa_printf(MSG_DEBUG, "   skip WPA IE - parse failed");
                        break;
                }
                if (!(ie.proto & ssid->proto)) {
                        wpa_printf(MSG_DEBUG, "   skip WPA IE - proto "
                                   "mismatch");
                        break;
                }

                if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
                        wpa_printf(MSG_DEBUG, "   skip WPA IE - PTK cipher "
                                   "mismatch");
                        break;
                }

                if (!(ie.group_cipher & ssid->group_cipher)) {
                        wpa_printf(MSG_DEBUG, "   skip WPA IE - GTK cipher "
                                   "mismatch");
                        break;
                }

                if (!(ie.key_mgmt & ssid->key_mgmt)) {
                        wpa_printf(MSG_DEBUG, "   skip WPA IE - key mgmt "
                                   "mismatch");
                        break;
                }

                wpa_printf(MSG_DEBUG, "   selected based on WPA IE");
                return 1;
        }

        if (proto_match == 0)
                wpa_printf(MSG_DEBUG, "   skip - no WPA/RSN proto match");

        return 0;
}


static struct wpa_scan_res *
wpa_supplicant_select_bss_wpa(struct wpa_supplicant *wpa_s,
                              struct wpa_ssid *group,
                              struct wpa_ssid **selected_ssid)
{
        struct wpa_ssid *ssid;
        struct wpa_scan_res *bss;
        size_t i;
        struct wpa_blacklist *e;
        const u8 *ie;
        u8 connected = 0;
        u8 level = 0, index = 0;

        /* If we are already in the connected state then do this */
        if ((wpa_s->wpa->proto == WPA_PROTO_RSN) || 
            (wpa_s->wpa->proto == WPA_PROTO_WPA))  {        
                if (wpa_s->wpa_state == WPA_COMPLETED) 
                        connected = 1;        
        }
        else if (wpa_s->wpa_state == WPA_COMPLETED) {
                        connected = 1;
        }

        if (connected) {
                /* If in connected state, figure out the RSSI of the 
                 * connected AP and its corresponding entry in the 
                 * scan table 
                 */
               
                for (i = 0; i < wpa_s->scan_res->num; i++) {
                        if (os_memcmp(wpa_s->scan_res->res[i], wpa_s->bssid, ETH_ALEN) == 0) {
                                     wpa_s->level = wpa_s->scan_res->res[i]->level;
                                index = i;
                                break;
                          }
                }
                if (wpa_s->level < wpa_s->conf->roam_threshold) {
                        wpa_printf(MSG_DEBUG, "Skipping searching for APs - current AP's RSSI %d is below "
                                              "the roam threshold: %d", wpa_s->level,
                                              wpa_s->conf->roam_threshold);
                         bss = wpa_s->scan_res->res[index];
                          return bss;
                }
        }

        wpa_printf(MSG_DEBUG, "Try to find WPA-enabled AP");
        for (i = 0; i < wpa_s->scan_res->num; i++) {
                const u8 *ssid_;
                u8 wpa_ie_len, rsn_ie_len, ssid_len;
                bss = wpa_s->scan_res->res[i];
                level = wpa_s->scan_res->res[i]->level;

                ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
                ssid_ = ie ? ie + 2 : (u8 *) "";
                ssid_len = ie ? ie[1] : 0;

                ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
                wpa_ie_len = ie ? ie[1] : 0;

                ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
                rsn_ie_len = ie ? ie[1] : 0;

                wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
                           "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x",
                           (int) i, MAC2STR(bss->bssid),
                           wpa_ssid_txt(ssid_, ssid_len),
                           wpa_ie_len, rsn_ie_len, bss->caps);

                e = wpa_blacklist_get(wpa_s, bss->bssid);
                if (e && e->count > 1) {
                        wpa_printf(MSG_DEBUG, "   skip - blacklisted");
                        continue;
                }

                if (ssid_len == 0) {
                        wpa_printf(MSG_DEBUG, "   skip - SSID not known");
                        continue;
                }

                if (wpa_ie_len == 0 && rsn_ie_len == 0) {
                        wpa_printf(MSG_DEBUG, "   skip - no WPA/RSN IE");
                        continue;
                }

                for (ssid = group; ssid; ssid = ssid->pnext) {
                        int check_ssid = 1;

                        if (ssid->disabled) {
                                wpa_printf(MSG_DEBUG, "   skip - disabled");
                                continue;
                        }

#ifdef CONFIG_WPS
                        if (ssid->ssid_len == 0 &&
                            wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
                                check_ssid = 0;
#endif /* CONFIG_WPS */

                        if (check_ssid &&
                            (ssid_len != ssid->ssid_len ||
                             os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
                                wpa_printf(MSG_DEBUG, "   skip - "
                                           "SSID mismatch");
                                continue;
                        }

                        if (ssid->bssid_set &&
                            os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
                        {
                                wpa_printf(MSG_DEBUG, "   skip - "
                                           "BSSID mismatch");
                                continue;
                        }

                        if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
                                continue;

                        /* Check here that if the connected AP's RSSI is better 
                         * by roam hysteresis,
                         * only then issue a connect request else continue,
                         * check in the connected state only.
                         */        
                        if (connected) {
                                if (wpa_s->level - level < wpa_s->conf->roam_hysteresis) {
                                        wpa_printf(MSG_DEBUG, "   skip - "
                                               "RSSI doesn't cross roam hystersis");        
                                        continue;         
                                }
                        }

                        wpa_printf(MSG_DEBUG, "   selected WPA AP "
                                   MACSTR " ssid='%s'",
                                   MAC2STR(bss->bssid),
                                   wpa_ssid_txt(ssid_, ssid_len));
                        *selected_ssid = ssid;
                        return bss;
                }
        }

        return NULL;
}


static struct wpa_scan_res *
wpa_supplicant_select_bss_non_wpa(struct wpa_supplicant *wpa_s,
                                  struct wpa_ssid *group,
                                  struct wpa_ssid **selected_ssid)
{
        struct wpa_ssid *ssid;
        struct wpa_scan_res *bss;
        size_t i;
        struct wpa_blacklist *e;
        const u8 *ie;
        u8 connected = 0;
        u8 level = 0, index = 0;

        /* If we are already in the connected state then do this */
        if ((wpa_s->wpa->proto == WPA_PROTO_RSN) || 
            (wpa_s->wpa->proto == WPA_PROTO_WPA))  {        
                if (wpa_s->wpa_state == WPA_COMPLETED) 
                        connected = 1;        
        }
        else if (wpa_s->wpa_state == WPA_COMPLETED) {
                        connected = 1;
        }

        if (connected) {
                /* If in connected state, figure out the RSSI of the 
                 * connected AP and its corresponding entry in the 
                 * scan table 
                 */
               
                for (i = 0; i < wpa_s->scan_res->num; i++) {
                        if (os_memcmp(wpa_s->scan_res->res[i], wpa_s->bssid, ETH_ALEN) == 0) {
                                     wpa_s->level = wpa_s->scan_res->res[i]->level;
                                index = i;
                                break;
                          }
                }
                if (wpa_s->level < wpa_s->conf->roam_threshold) {
                        wpa_printf(MSG_DEBUG, "Skipping searching for APs as current AP's RSSI is below "
                                              "the roam threshold: %d", wpa_s->level);
                         bss = wpa_s->scan_res->res[index];
                          return bss;
                }
        }

        wpa_printf(MSG_DEBUG, "Try to find non-WPA AP");
        for (i = 0; i < wpa_s->scan_res->num; i++) {
                const u8 *ssid_;
                u8 wpa_ie_len, rsn_ie_len, ssid_len;
                bss = wpa_s->scan_res->res[i];
                level = wpa_s->scan_res->res[i]->level;

                ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
                ssid_ = ie ? ie + 2 : (u8 *) "";
                ssid_len = ie ? ie[1] : 0;

                ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
                wpa_ie_len = ie ? ie[1] : 0;

                ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
                rsn_ie_len = ie ? ie[1] : 0;

                wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
                           "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x",
                           (int) i, MAC2STR(bss->bssid),
                           wpa_ssid_txt(ssid_, ssid_len),
                           wpa_ie_len, rsn_ie_len, bss->caps);

                e = wpa_blacklist_get(wpa_s, bss->bssid);
                if (e && e->count > 1) {
                        wpa_printf(MSG_DEBUG, "   skip - blacklisted");
                        continue;
                }

                if (ssid_len == 0) {
                        wpa_printf(MSG_DEBUG, "   skip - SSID not known");
                        continue;
                }

                for (ssid = group; ssid; ssid = ssid->pnext) {
                        int check_ssid = ssid->ssid_len != 0;

                        if (ssid->disabled) {
                                wpa_printf(MSG_DEBUG, "   skip - disabled");
                                continue;
                        }

#ifdef CONFIG_WPS
                        if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
                                /* Only allow wildcard SSID match if an AP
                                 * advertises active WPS operation that matches
                                 * with our mode. */
                                check_ssid = 1;
                                if (ssid->ssid_len == 0 &&
                                    wpas_wps_ssid_wildcard_ok(wpa_s, ssid,
                                                              bss))
                                        check_ssid = 0;
                        }
#endif /* CONFIG_WPS */

                        if (check_ssid &&
                            (ssid_len != ssid->ssid_len ||
                             os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
                                wpa_printf(MSG_DEBUG, "   skip - "
                                           "SSID mismatch");
                                continue;
                        }

                        if (ssid->bssid_set &&
                            os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
                        {
                                wpa_printf(MSG_DEBUG, "   skip - "
                                           "BSSID mismatch");
                                continue;
                        }

                        if (!(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
                            !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
                            !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA))
                        {
                                wpa_printf(MSG_DEBUG, "   skip - "
                                           "non-WPA network not allowed");
                                continue;
                        }

                        if ((ssid->key_mgmt &
                             (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK |
                              WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_FT_PSK |
                              WPA_KEY_MGMT_IEEE8021X_SHA256 |
                              WPA_KEY_MGMT_PSK_SHA256)) &&
                            (wpa_ie_len != 0 || rsn_ie_len != 0)) {
                                wpa_printf(MSG_DEBUG, "   skip - "
                                           "WPA network");
                                continue;
                        }

                        if (!wpa_supplicant_match_privacy(bss, ssid)) {
                                wpa_printf(MSG_DEBUG, "   skip - "
                                           "privacy mismatch");
                                continue;
                        }

                        if (bss->caps & IEEE80211_CAP_IBSS) {
                                wpa_printf(MSG_DEBUG, "   skip - "
                                           "IBSS (adhoc) network");
                                continue;
                        }

                        /* Check here that if the connected AP's RSSI is better 
                         * by roam hysteresis,
                         * only then issue a connect request else continue,
                         * check in the connected state only.
                         */        
                        if (connected) {
                                if (wpa_s->level - level < wpa_s->conf->roam_hysteresis) {
                                        wpa_printf(MSG_DEBUG, "   skip - "
                                               "RSSI doesn't cross roam hystersis");        
                                        continue;         
                                }
                        }

                        wpa_printf(MSG_DEBUG, "   selected non-WPA AP "
                                   MACSTR " ssid='%s'",
                                   MAC2STR(bss->bssid),
                                   wpa_ssid_txt(ssid_, ssid_len));
                        *selected_ssid = ssid;
                        return bss;
                }
        }

        return NULL;
}


static struct wpa_scan_res *
wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, struct wpa_ssid *group,
                          struct wpa_ssid **selected_ssid)
{
        struct wpa_scan_res *selected;

        wpa_printf(MSG_DEBUG, "Selecting BSS from priority group %d",
                   group->priority);

        /* First, try to find WPA-enabled AP */
        selected = wpa_supplicant_select_bss_wpa(wpa_s, group, selected_ssid);
        if (selected)
                return selected;

        /* If no WPA-enabled AP found, try to find non-WPA AP, if configuration
         * allows this. */
        return wpa_supplicant_select_bss_non_wpa(wpa_s, group, selected_ssid);
}


static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s)
{
        int prio, timeout;
        struct wpa_scan_res *selected = NULL;
        struct wpa_ssid *ssid = NULL;
        u8 connected = 0;

        wpa_supplicant_notify_scanning(wpa_s, 0);

        if (wpa_supplicant_get_scan_results(wpa_s) < 0) {
                if (wpa_s->conf->ap_scan == 2)
                        return;
                wpa_printf(MSG_DEBUG, "Failed to get scan results - try "
                           "scanning again");
                timeout = 1;
                goto req_scan;
        }

        /*
         * Don't post the results if this was the initial cached
         * and there were no results.
         */
        if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1 &&
            wpa_s->scan_res->num == 0) {
                wpa_msg(wpa_s, MSG_DEBUG, "Cached scan results are "
                        "empty - not posting");
        } else {
                wpa_printf(MSG_DEBUG, "New scan results available");
                wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
                wpa_supplicant_dbus_notify_scan_results(wpa_s);
                wpas_wps_notify_scan_results(wpa_s);
        }

        if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
                return;

        if (wpa_s->disconnected) {
                wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
                return;
        }

        while (selected == NULL) {
                for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
                        selected = wpa_supplicant_select_bss(
                                wpa_s, wpa_s->conf->pssid[prio], &ssid);
                        if (selected)
                                break;
                }

                if (selected == NULL && wpa_s->blacklist) {
                        wpa_printf(MSG_DEBUG, "No APs found - clear blacklist "
                                   "and try again");
                        wpa_blacklist_clear(wpa_s);
                        wpa_s->blacklist_cleared++;
                } else if (selected == NULL) {
                        break;
                }
        }

        if (selected) {
                if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
                        wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
                                "PBC session overlap");
                        timeout = 10;
                        goto req_scan;
                }

                /* Do not trigger new association unless the BSSID has changed
                 * or if reassociation is requested. If we are in process of
                 * associating with the selected BSSID, do not trigger new
                 * attempt. */
                if (wpa_s->reassociate ||
                    (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
                     (wpa_s->wpa_state != WPA_ASSOCIATING ||
                      os_memcmp(selected->bssid, wpa_s->pending_bssid,
                                ETH_ALEN) != 0))) {
                        if (wpa_supplicant_scard_init(wpa_s, ssid)) {
                                wpa_supplicant_req_scan(wpa_s, 10, 0);
                                return;
                        }
                        wpa_supplicant_associate(wpa_s, selected, ssid);
                } else {
                        wpa_printf(MSG_DEBUG, "Already associated with the "
                                   "selected AP.");
                }
                rsn_preauth_scan_results(wpa_s->wpa, wpa_s->scan_res);
        } else {
                wpa_printf(MSG_DEBUG, "No suitable AP found.");
                if ((wpa_s->wpa->proto == WPA_PROTO_RSN) || 
                    (wpa_s->wpa->proto == WPA_PROTO_WPA)) {        
                        if (wpa_s->wpa_state == WPA_COMPLETED) 
                                     connected = 1;        
                }
                else if (wpa_s->wpa_state == WPA_COMPLETED) { 
                          connected = 1;
                }

                if (!connected) {
                        timeout = 5;
                        goto req_scan;
                }
        }

        return;

req_scan:
        if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1) {
                /*
                 * Quick recovery if the initial scan results were not
                 * complete when fetched before the first scan request.
                 */
                wpa_s->scan_res_tried++;
                timeout = 0;
        } else if (!wpa_supplicant_enabled_networks(wpa_s->conf)) {
                /*
                 * No networks are enabled; short-circuit request so
                 * we don't wait timeout seconds before transitioning
                 * to INACTIVE state.
                 */
                wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
                return;
        }
        wpa_supplicant_req_scan(wpa_s, timeout, 0);
}
#endif /* CONFIG_NO_SCAN_PROCESSING */


static void wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
                                           union wpa_event_data *data)
{
        int l, len, found = 0, wpa_found, rsn_found;
        u8 *p;

        wpa_printf(MSG_DEBUG, "Association info event");
        if (data->assoc_info.req_ies)
                wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
                            data->assoc_info.req_ies_len);
        if (data->assoc_info.resp_ies)
                wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
                            data->assoc_info.resp_ies_len);
        if (data->assoc_info.beacon_ies)
                wpa_hexdump(MSG_DEBUG, "beacon_ies",
                            data->assoc_info.beacon_ies,
                            data->assoc_info.beacon_ies_len);

        p = data->assoc_info.req_ies;
        l = data->assoc_info.req_ies_len;

        /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
        while (p && l >= 2) {
                len = p[1] + 2;
                if (len > l) {
                        wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
                                    p, l);
                        break;
                }
                if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
                     (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
                    (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
                        if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
                                break;
                        found = 1;
                        wpa_find_assoc_pmkid(wpa_s);
                        break;
                }
                l -= len;
                p += len;
        }
        if (!found && data->assoc_info.req_ies)
                wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);

        /* WPA/RSN IE from Beacon/ProbeResp */
        p = data->assoc_info.beacon_ies;
        l = data->assoc_info.beacon_ies_len;

        /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
         */
        wpa_found = rsn_found = 0;
        while (p && l >= 2) {
                len = p[1] + 2;
                if (len > l) {
                        wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
                                    p, l);
                        break;
                }
                if (!wpa_found &&
                    p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
                    os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
                        wpa_found = 1;
                        wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
                }

                if (!rsn_found &&
                    p[0] == WLAN_EID_RSN && p[1] >= 2) {
                        rsn_found = 1;
                        wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
                }

                l -= len;
                p += len;
        }

        if (!wpa_found && data->assoc_info.beacon_ies)
                wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
        if (!rsn_found && data->assoc_info.beacon_ies)
                wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
        if (wpa_found || rsn_found)
                wpa_s->ap_ies_from_associnfo = 1;
}


static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
                                       union wpa_event_data *data)
{
        u8 bssid[ETH_ALEN];
        int ft_completed = wpa_ft_is_completed(wpa_s->wpa);
  u8 cckm_completed = 0;
#ifdef CONFIG_CCKM 
  struct wpa_sm *wps = wpa_s->wpa;
        cckm_completed = wps->wpa_cckm_completed;
#endif

        if (data)
                wpa_supplicant_event_associnfo(wpa_s, data);

        wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
        if (wpa_s->use_client_mlme)
                os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
        if (wpa_s->use_client_mlme ||
            (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
             os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)) {
                wpa_msg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
                        MACSTR, MAC2STR(bssid));
                os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
                os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
                if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed && 
                                !cckm_completed) {
                        wpa_clear_keys(wpa_s, bssid);
                }
                if (wpa_supplicant_select_config(wpa_s) < 0) {
                        wpa_supplicant_disassociate(
                                wpa_s, WLAN_REASON_DEAUTH_LEAVING);
                        return;
                }
        }

        wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
#ifdef CONFIG_CCKM
        wpa_sm_reset_timeout(wpa_s->eapol);
#endif
        if (wpa_s->current_ssid) {
                /* When using scanning (ap_scan=1), SIM PC/SC interface can be
                 * initialized before association, but for other modes,
                 * initialize PC/SC here, if the current configuration needs
                 * smartcard or SIM/USIM. */
                wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
        }
        wpa_sm_notify_assoc(wpa_s->wpa, bssid);
        l2_packet_notify_auth_start(wpa_s->l2);

        /*
         * Set portEnabled first to FALSE in order to get EAP state machine out
         * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
         * state machine may transit to AUTHENTICATING state based on obsolete
         * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
         * AUTHENTICATED without ever giving chance to EAP state machine to
         * reset the state.
         */
        if ((!ft_completed) && (!cckm_completed)) {
                eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
                eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
        }
        if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
                eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
        /* 802.1X::portControl = Auto */
        eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
        wpa_s->eapol_received = 0;
        if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
            wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
                wpa_supplicant_cancel_auth_timeout(wpa_s);
                wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
        } else if ((!ft_completed) && (!cckm_completed)) {
                /* Timeout for receiving the first EAPOL packet */
                wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
        }
        wpa_supplicant_cancel_scan(wpa_s);

        if ((wpa_s->driver_4way_handshake &&
            wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) || 
      (cckm_completed)) {
                /*
                 * We are done; the driver will take care of RSN 4-way
                 * handshake.
                 */
                wpa_supplicant_cancel_auth_timeout(wpa_s);
                wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
                eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
                eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
        }

        if (wpa_s->pending_eapol_rx) {
                struct os_time now, age;
                os_get_time(&now);
                os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
                if (age.sec == 0 && age.usec < 100000 &&
                    os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
                    0) {
                        wpa_printf(MSG_DEBUG, "Process pending EAPOL frame "
                                   "that was received just before association "
                                   "notification");
                        wpa_supplicant_rx_eapol(
                                wpa_s, wpa_s->pending_eapol_rx_src,
                                wpabuf_head(wpa_s->pending_eapol_rx),
                                wpabuf_len(wpa_s->pending_eapol_rx));
                }
                wpabuf_free(wpa_s->pending_eapol_rx);
                wpa_s->pending_eapol_rx = NULL;
        }
}


static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s)
{
        const u8 *bssid;

        if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
                /*
                 * At least Host AP driver and a Prism3 card seemed to be
                 * generating streams of disconnected events when configuring
                 * IBSS for WPA-None. Ignore them for now.
                 */
                wpa_printf(MSG_DEBUG, "Disconnect event - ignore in "
                           "IBSS/WPA-None mode");
                return;
        }

        if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
            wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
                wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
                        "pre-shared key may be incorrect");
        }
        if (wpa_s->wpa_state >= WPA_ASSOCIATED)
                wpa_supplicant_req_scan(wpa_s, 0, 100000);
        bssid = wpa_s->bssid;
        if (is_zero_ether_addr(bssid))
                bssid = wpa_s->pending_bssid;
        wpa_blacklist_add(wpa_s, bssid);
        wpa_sm_notify_disassoc(wpa_s->wpa);
        wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "- Disconnect event - "
                "remove keys");
        if (wpa_supplicant_dynamic_keys(wpa_s)) {
                wpa_s->keys_cleared = 0;
                wpa_clear_keys(wpa_s, wpa_s->bssid);
        }
        wpa_supplicant_mark_disassoc(wpa_s);
}


#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
static void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx,
                                                    void *sock_ctx)
{
        struct wpa_supplicant *wpa_s = eloop_ctx;

        if (!wpa_s->pending_mic_error_report)
                return;

        wpa_printf(MSG_DEBUG, "WPA: Sending pending MIC error report");
        wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
        wpa_s->pending_mic_error_report = 0;
}
#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */


static void
wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
                                         union wpa_event_data *data)
{
        int pairwise;
        struct os_time t;

        wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
        pairwise = (data && data->michael_mic_failure.unicast);
        os_get_time(&t);
        if ((wpa_s->last_michael_mic_error &&
             t.sec - wpa_s->last_michael_mic_error <= 60) ||
            wpa_s->pending_mic_error_report) {
                if (wpa_s->pending_mic_error_report) {
                        /*
                         * Send the pending MIC error report immediately since
                         * we are going to start countermeasures and AP better
                         * do the same.
                         */
                        wpa_sm_key_request(wpa_s->wpa, 1,
                                           wpa_s->pending_mic_error_pairwise);
                }

                /* Send the new MIC error report immediately since we are going
                 * to start countermeasures and AP better do the same.
                 */
                wpa_sm_key_request(wpa_s->wpa, 1, pairwise);

                /* initialize countermeasures */
                wpa_s->countermeasures = 1;
                wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");

                /*
                 * Need to wait for completion of request frame. We do not get
                 * any callback for the message completion, so just wait a
                 * short while and hope for the best. */
                os_sleep(0, 10000);

                wpa_drv_set_countermeasures(wpa_s, 1);
                wpa_supplicant_deauthenticate(wpa_s,
                                              WLAN_REASON_MICHAEL_MIC_FAILURE);
                eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
                                     wpa_s, NULL);
                eloop_register_timeout(60, 0,
                                       wpa_supplicant_stop_countermeasures,
                                       wpa_s, NULL);
                /* TODO: mark the AP rejected for 60 second. STA is
                 * allowed to associate with another AP.. */
        } else {
#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
                if (wpa_s->mic_errors_seen) {
                        /*
                         * Reduce the effectiveness of Michael MIC error
                         * reports as a means for attacking against TKIP if
                         * more than one MIC failure is noticed with the same
                         * PTK. We delay the transmission of the reports by a
                         * random time between 0 and 60 seconds in order to
                         * force the attacker wait 60 seconds before getting
                         * the information on whether a frame resulted in a MIC
                         * failure.
                         */
                        u8 rval[4];
                        int sec;

                        if (os_get_random(rval, sizeof(rval)) < 0)
                                sec = os_random() % 60;
                        else
                                sec = WPA_GET_BE32(rval) % 60;
                        wpa_printf(MSG_DEBUG, "WPA: Delay MIC error report %d "
                                   "seconds", sec);
                        wpa_s->pending_mic_error_report = 1;
                        wpa_s->pending_mic_error_pairwise = pairwise;
                        eloop_cancel_timeout(
                                wpa_supplicant_delayed_mic_error_report,
                                wpa_s, NULL);
                        eloop_register_timeout(
                                sec, os_random() % 1000000,
                                wpa_supplicant_delayed_mic_error_report,
                                wpa_s, NULL);
                } else {
                        wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
                }
#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
                wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
        }
        wpa_s->last_michael_mic_error = t.sec;
        wpa_s->mic_errors_seen++;
}


static void
wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
                                      union wpa_event_data *data)
{
        if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
                return;

        switch (data->interface_status.ievent) {
        case EVENT_INTERFACE_ADDED:
                if (!wpa_s->interface_removed)
                        break;
                wpa_s->interface_removed = 0;
                wpa_printf(MSG_DEBUG, "Configured interface was added.");
                if (wpa_supplicant_driver_init(wpa_s) < 0) {
                        wpa_printf(MSG_INFO, "Failed to initialize the driver "
                                   "after interface was added.");
                }
                break;
        case EVENT_INTERFACE_REMOVED:
                wpa_printf(MSG_DEBUG, "Configured interface was removed.");
                wpa_s->interface_removed = 1;
                wpa_supplicant_mark_disassoc(wpa_s);
                l2_packet_deinit(wpa_s->l2);
                wpa_s->l2 = NULL;
                break;
        }
}


#ifdef CONFIG_PEERKEY
static void
wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
                              union wpa_event_data *data)
{
        if (data == NULL)
                return;
        wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
}
#endif /* CONFIG_PEERKEY */


#ifdef CONFIG_IEEE80211R
static void
wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
                                 union wpa_event_data *data)
{
        if (data == NULL)
                return;

        if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
                                    data->ft_ies.ies_len,
                                    data->ft_ies.ft_action,
                                    data->ft_ies.target_ap) < 0) {
                /* TODO: prevent MLME/driver from trying to associate? */
        }
}
#endif /* CONFIG_IEEE80211R */

#ifdef CONFIG_CCKM
static void
wpa_supplicant_event_cckm_request(struct wpa_supplicant *wpa_s,
                                    union wpa_event_data *data)
{
        if (data == NULL)
                  return;

        /* Calculate MIC to be included with the reassoc request */
        wpa_printf(MSG_INFO, "Received calculate MIC request");
        wpa_hexdump(MSG_DEBUG, "BSSID is: ", data->cckm_request.bssid, 6);
        wpa_hexdump(MSG_DEBUG, "TSF is: ", (u8 *)&data->cckm_request.tsf[0], 8);
        wpa_cckm_hmac_calculate_wpa(wpa_s, data->cckm_request.bssid, 
                                      (u8 *)&data->cckm_request.tsf[0]);
        return;
}

static void
wpa_supplicant_event_cckm_reassoc_resp(struct wpa_supplicant *wpa_s,
                                         union wpa_event_data *data)
{
        struct wpa_gtk_data gtk; 
        if (data == NULL)
                  return; 
        /* Validate received MIC */
        wpa_printf(MSG_INFO, "Received validate MIC request");
        wpa_hexdump(MSG_DEBUG, "CCKM Response IE:", (u8 *)&data->cckm_response, 80);
        wpa_hexdump(MSG_DEBUG, "Encrypted GTK is:", data->cckm_response.gtk, 32);
        if (wpa_supplicant_verify_cckm_key_mic(wpa_s->wpa, 
                                               data->cckm_response.rekey_number,
                                               data->cckm_response.keyid,
                                           data->cckm_response.keyid_mcast,
                                           data->cckm_response.rsc,
                                           data->cckm_response.gkey_len,
                                           data->cckm_response.mic,
                                           data->cckm_response.gtk,
                                                  (u8 *)&gtk
                                               ) == 0) 
        {
                /* Install the keys now PTK followed by GTK */
                wpa_printf(MSG_INFO, "MIC validated, successfully derived keys");
                wpa_install_cckm_newkeys(wpa_s->wpa, &gtk);
                wpa_s->wpa->wpa_cckm_completed = 1;
        }
        else
        {
           /* MIC check failed. So, ask station to deauthenticate 
            * Check the reason code here
            */        
           wpa_sm_deauthenticate(wpa_s->wpa, WLAN_REASON_UNSPECIFIED);
           wpa_s->wpa->wpa_cckm_completed = 0;
        }
        return;
}
#endif

void wpa_supplicant_event(void *ctx, wpa_event_type event,
                          union wpa_event_data *data)
{
        struct wpa_supplicant *wpa_s = ctx;

        switch (event) {
        case EVENT_ASSOC:
                wpa_supplicant_event_assoc(wpa_s, data);
                break;
        case EVENT_DISASSOC:
                wpa_supplicant_event_disassoc(wpa_s);
                break;
        case EVENT_MICHAEL_MIC_FAILURE:
                wpa_supplicant_event_michael_mic_failure(wpa_s, data);
                break;
#ifndef CONFIG_NO_SCAN_PROCESSING
        case EVENT_SCAN_RESULTS:
                wpa_supplicant_event_scan_results(wpa_s);
                break;
#endif /* CONFIG_NO_SCAN_PROCESSING */
        case EVENT_ASSOCINFO:
                wpa_supplicant_event_associnfo(wpa_s, data);
                break;
        case EVENT_INTERFACE_STATUS:
                wpa_supplicant_event_interface_status(wpa_s, data);
                break;
        case EVENT_PMKID_CANDIDATE:
                wpa_supplicant_event_pmkid_candidate(wpa_s, data);
                break;
#ifdef CONFIG_PEERKEY
        case EVENT_STKSTART:
                wpa_supplicant_event_stkstart(wpa_s, data);
                break;
#endif /* CONFIG_PEERKEY */
#ifdef CONFIG_IEEE80211R
        case EVENT_FT_RESPONSE:
                wpa_supplicant_event_ft_response(wpa_s, data);
                break;
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_CCKM
        case EVENT_CCKM_REASSOC:
                wpa_supplicant_event_cckm_request(wpa_s, data);
                break;
        case EVENT_CCKM_REASSOC_RESP:
                wpa_supplicant_event_cckm_reassoc_resp(wpa_s, data);
                break;
#endif
        default:
                wpa_printf(MSG_INFO, "Unknown event %d", event);
                break;
        }
}
